Convert vintage Amstrad CPC 464, 664, and 6128 screen dumps (.cpc, .scr) into clean, modern 32-bit RGBA PNG images in your browser. 100% private in-browser decoder with AMSDOS header verification.
Detailed side-by-side format architecture for CPC Graphic Raster (.cpc) and Portable Network Graphics (.png). Every conversion executes strictly within isolated browser memory without network transit.
Drag and drop your .cpc file onto the working surface or use the system file dialog. File magic bytes are verified locally on device.
Select a quality preset (Lossless, Visually Lossless, Balanced, Smallest) or adjust advanced encoding switches in the options panel.
Click CONVERT to execute local WebAssembly compilation. Save the finished .png directly to local storage, or stage it for chaining.
Prefer local shell scripting? Run this standard POSIX command on your machine to achieve equivalent transcoding without a web interface:
# Convert CPC to PNG locally
magick input.cpc output.pngWorking with files across multiple web pages? The official convrtr Chrome Extension adds native Side Panel docking, right-click context menu media extraction, and visible viewport capture. Powered by the same zero-upload client-side WebAssembly engine.
Compare the video display hardware, memory mapping, and graphics capabilities of the Amstrad CPC (CRTC 6845) and Sinclair ZX Spectrum (ULA).
Detailed technical comparison between PNG and JPG (JPEG). Understand lossless vs lossy compression, alpha channel transparency, and file size optimization.
Compare WebP and PNG file sizes, transparency handling, browser support, and compression performance for web graphics and illustrations.
An Amstrad CPC screen file is a 16,384-byte direct memory dump (or 16,512 bytes with a 128-byte AMSDOS tape/disk header) of the video RAM addressed by the Motorola 6845 cathode ray tube controller (CRTC).
convrtr supports all three standard CPC graphics modes: Mode 0 (160×200 with 16 colors), Mode 1 (320×200 with 4 colors), and Mode 2 (640×200 monochrome with 2 colors). Mode 0 images can also be aspect-corrected to 320×200.
The engine maps the CPC hardware palette where each red, green, and blue channel has three discrete levels (0%, 50%, and 100%), producing the iconic 27-color palette accurately rendered in 32-bit RGBA.
Never. All decoding, AMSDOS checksum verification, and PNG encoding run entirely client-side in your web browser memory using pure TypeScript.
CPC Graphic Raster (CPC) and Portable Network Graphics (PNG) serve distinct roles across the digital workflow. Converting to PNG provides optimized compatibility, modern compression efficiency, or standardized playback across web browsers, operating systems, and media production environments.
The output format (PNG) is inherently lossless or supports lossless operation. Your original visual or audio fidelity is mathematically preserved without quantization artifacts.
Never. convrtr is architected with a strict zero-upload model. All processing, decoding, decompression, and encoding happen 100% locally on your machine using sandboxed WebAssembly and Web Workers. Your data never touches an external server, database, or analytics collector.
You can execute this conversion locally via command-line utilities such as ffmpeg, cwebp, or ImageMagick. For example: see the developer terminal recipe provided in the technical specifications dossier above. convrtr provides the identical local-first capability directly inside your browser without installing CLI packages.
Yes. You can drop multiple .cpc files into the instrument to process them concurrently in browser Web Workers, or click 'Open in Master Studio' to queue mixed formats, configure individual targets, and export as a single ZIP archive.
Discover how the Amstrad CPC 464, 664, and 6128 video architecture works. Learn how CRTC scanline addressing, Gate Array bitplane interleaving, and 27-color palettes decode into modern PNG images.